Frederick I, Holy Roman Emperor
b:
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| PARENT (M) Frederick II, Duke of Swabia | |||
| Birth | |||
| Death | |||
| Marriage | to Agnes of Saarbrücken | ||
| Marriage | to Judith of Bavaria, Duchess of Swabia | ||
| Father | Frederick I, Duke of Swabia | ||
| Mother | Agnes of Germany | ||
| PARENT (F) Judith of Bavaria, Duchess of Swabia | |||
| Birth | |||
| Death | |||
| Marriage | to Frederick II, Duke of Swabia | ||
| Father | Henry IX, Duke of Bavaria | ||
| Mother | Wulfhilde of Saxony | ||
| CHILDREN | |||
| M | Frederick I, Holy Roman Emperor | ||
| Birth | |||
| Death | |||
| Marriage | to Beatrice I, Countess of Burgundy | ||
| PARENT (M) Frederick I, Holy Roman Emperor | |||
| Birth | |||
| Death | |||
| Marriage | to Beatrice I, Countess of Burgundy | ||
| Father | Frederick II, Duke of Swabia | ||
| Mother | Judith of Bavaria, Duchess of Swabia | ||
| PARENT (F) Beatrice I, Countess of Burgundy | |||
| Birth | |||
| Death | |||
| Marriage | to Frederick I, Holy Roman Emperor | ||
| Father | Renaud III, Count of Burgundy | ||
| Mother | Agatha of Lorraine | ||
| CHILDREN | |||
| M | Philip of Swabia | ||
| Birth | |||
| Death | |||
| Marriage | to Irene Angelina | ||
+ Edward II b: 25 APR 1284 d: 21 SEP 1327
8 Edward III b: 13 NOV 1312 d: 21 JUN 1377
9 John of Gaunt, 1st Duke of Lancaster b: 6 MAR 1340 d: 3 FEB 1399
+ Blanche
10 Henry Beaufort b: ABT 1375 d: 11 APR 1447